| 摘要 |
PURPOSE:To cause cold air to be uniformly blown out of each of blowing-out ports of a duct. CONSTITUTION:Cold air sent from a cooler by a fan flows into a first duct 33a extending upwardly from a supplying port 34 opened or closed by a damper device 35. This cold air strikes against the first duct 33a at its upper end and then flows into a second duct 33b extending downwardly. As the cold air strikes against the first duct 33a at its upper end, the speed of cold air is converted into pressure. The cold air entering the second duct 33b is blown out through a plurality of blowing-out ports 33c due to its pressure, so that a blowing amount from each of the blowing-out ports 33c becomes equal to each other. |
